1. Institute for Interfacial Process Engineering and Plasma Technology; University of Stuttgart; Nobelstraße 12 Stuttgart 70569 Germany
2. Esslingen University of Applied Sciences; Kanalstraße 33 Esslingen 73728 Germany
3. Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB; Nobelstraße 12 Stuttgart 70569 Germany
4. Reutlingen University; Alteburgstr. 150 Reutlingen 72762 Germany